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M6 x 143mm Aluminum 6061 Hex Cap Screw

Expert Overview

This M6 x 143mm Hex Head Cap Screw, crafted from high-strength Aluminum 6061, offers exceptional corrosion resistance and a lightweight profile. Ideal for applications demanding precision and durability.

StandardISO 9001
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
SizeM6
Length143mm
Head Width16mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M6 x 143mm Hex Head Cap Screw features a nominal diameter of M6 and a substantial 143mm length for deep engagement. The head boasts a 16mm width for robust wrenching capabilities. Fabricated from Aluminum 6061-T6, it exhibits excellent tensile strength (290 MPa), yield strength (241 MPa), and a low density (2.7 g/cm³), making it ideal for weight-sensitive assemblies. Its inherent corrosion resistance ensures longevity in various environments, from marine to aerospace. The hex drive allows for high torque application without stripping.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

BossardEst. 1831
Switzerland🇨🇭
"Global leader in fastening technology."
Market Rank
🏆 Top 3 Global Fastener Network
Industry Approvals
🚀 Aerospace & Tesla Approved
Warranty & Support
🛡️ Lifetime Traceability
Green Manufacturing
🌱 Carbon Neutral by 2030
Certified:ISO 9001, RoHS, REACH
Würth GroupEst. 1945
Germany🇩🇪
"Premium assembly and fastening materials."
Market Rank
🏆 #1 Global Assembly Supplier
Industry Approvals
🚀 VW & BMW OEM
Warranty & Support
🛡️ 5-Year Industrial Warranty
Green Manufacturing
🌱 100% Recyclable Packaging
Certified:ISO 9001, DIN EN
Brighton-BestEst. 1925
USA🇺🇸
"Master distributor of industrial fasteners."
Market Rank
🏆 Largest Distributor in NA
Industry Approvals
🚀 Boeing Approved
Warranty & Support
🛡️ Global Replacement Guarantee
Green Manufacturing
🌱 Green Steel Initiative
Certified:ISO 9001, A2LA

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:N/A

Installation Procedure

1. Select the appropriate mating hole and ensure threads are clean and free of debris. 2. Hand-thread the screw initially to prevent cross-threading and confirm alignment. 3. Tighten the screw using a calibrated torque wrench to the recommended specification for Aluminum 6061 fasteners, typically around 6.2 Nm for an M6 screw in an aluminum mating surface.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°C)
Thermal Expansion
Typical for Material Class

Recommended Torque Values

Bolt SizeDry Torque (ft-lbs)Lubricated Torque (ft-lbs)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tighteningUtilize a torque wrench set to the appropriate specification for the material and thread size to prevent stripping threads or deforming the fastener/mating component.
Using standard steel tools on aluminum fastenersEmploy tools made of hardened steel or specialized aluminum wrenches to avoid galling or damaging the softer aluminum threads.

Common Applications

  • Aerospace and aviation structural components
  • Marine hardware and fittings
  • Lightweight vehicle manufacturing
  • High-performance sporting goods

⚠️ Engineering Warnings

  • Aluminum 6061 has lower tensile and shear strength compared to steel; ensure it is suitable for the load requirements of your application.
  • Avoid using in environments with aggressive chemicals or extreme temperatures that could compromise aluminum's integrity.

Alternative Products to Consider

Premium Fastening & Joining equivalentHigher corrosion resistance (316 SS)
Economy Fastening & Joining optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the Hex Head Cap Screw, Aluminum 6061 made from?

A: This Hex Head Cap Screw, Aluminum 6061 is manufactured from Aluminum 6061.

Q: What are the main applications?

A: Aerospace and aviation structural components, Marine hardware and fittings, Lightweight vehicle manufacturing, High-performance sporting goods.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 143mmAF16mm1/2"-13TIGHTEN →MECHANICAL PROPERTIESTensile Strength: 150,000 psiThread: 1/2"-13 UNCTorque Direction: Clockwise (CW)Head Marking: 6 radial lines (Grade 8)

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.